<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
    </div>
    <div
           class="search-content"
           ref="search"
           v-show="keyword"
          >
      <ul>
        <li class="search-item border-bottom"
                   v-for="item
                   of
                   list"
                   :key="item.id">
          {{item.name}}
        </li>
        <li  class="search-item border-bottom"
             v-show="hasNOData"
        >
            没有找到匹配数据
        </li>
      </ul>
    </div>
  </div>
</template>
<script>
import Bscroll from 'better-scroll'
export default{
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data () {
    return {
      keyword: '',
      list: [],
      timer: null
    }
  },
  computed: {
    hasNOData () {
      return !this.list.length
    }
  },
  watch: {
    keyword () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyword) {
        this.list = []
        return
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach((value) => {
            if (value.spell.indexOf(this.keyword) > -1 ||
              value.name.indexOf(this.keyword) > -1) {
              result.push(value)
            }
          })
        }
        this.list = result
      }, 100)
    }
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.search)
  }
}
</script>
<style lang="stylus" scoped>
    @import '~styles/varibles.styl'
    .search
      height: .62rem
      padding :.1rem
      background:$bgColor
      .search-input
          box-sizing:border-box
          width:100%
          height: .62rem
          padding:0 .1rem
          line-height: .62rem
          text-align:center
          -webkit-border-radius: .06rem
          -moz-border-radius: .06rem
          border-radius: .06rem
          color:#666
    .search-content
        z-index:1
        overflow: hidden
        position : absolute
        top: 1.68rem
        left: 0
        right: 0
        bottom: 0
        background: #eee
        .search-item
            line-height : .62rem
            padding-left: .2rem
            background: #fff
            color: #666
</style>
